I already have a case, that's why I didn't mention it. It is a CM690II.
What do you think of this harddrive. It is the same price as Samsung spinpoint f3 1tb, except bigger.
Seagate Barracuda 7200.11 1500GB 1.5TB SATA2 7200RPM 32MB Cache NCQ Hard Drive OEM
Also, another question, is 700W enough?